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(No Modeli) J. G. HALLAS. ELEOTRIG RAIL BOND.

No. 523,278. Patented July 17,1894.

WITNESSES INVENTOR m: uonms FETERS 0a., moron-ma. wuummom u c.

UNITED STATES PATENT OFFICE.

JAMES G. HALLAS, OF WATER-BURY, CONNECTICUT, ASSIGNOR TO THE BENE- DICT& BURNHAM MANUFACTURING COMPANY, OF SAME PLACE.

ELECILRIC RAIL-BOND.

SPECIFICATION forming part of Letters Patent No. 523,278, dated July 17,1894.

I Application filed May 1, 1894. Serial No. 509.705- (No model.) I

To 00% whom it may concern.-

Be it known that I, JAMES G. HALLAS, a citizen of the United States,residing at Waterbury, in the county of New Haven and State ofConnecticut, have invented certain new and useful Improvements inElectric Rail- Bonds; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled IO in the art to which it appertains to make and use thesame.

My invention has for its object to provide a bond for the rails ofelectric railroads which shall be inexpensive to produce and which shallbe so constructed as to expand and contract with the expansion andcontraction of the rails andwhich shall have sufficient spring qualityto permit it to yield should the rails be unevenly laid or becomeloosened in use and furthermore to prevent the metal of the bond frombecoming crystallized fromthe continual pounding of the wheels of thecars. With these ends in view I have devised the novel electric railbond which, I will now describe referring by numbers to the accompanyingdrawings, forming part of this specification, in which- Figures 1 and 2are elevations, and Fig. 3 is a plan view illustrating slightlydiiferent 3o modes in which I have carried my invention sence of myinvention, the gist of which consists in providing the bonds with coilsso as to give sufficient resiliency to the bond to give it durability inuse by permitting the bond to yield with the expansion and contractionof the rails and by preventing crystallization of the bond itself.

In Fig. 1 Theme shown the bond as provided with a single coil lying in aplane transverse to the plane of the bond.

In Fig. 2 the bond is shown as providedv with a single coil which liessubstantially in the longitudinal plane of the bond and in Fig. 3 I haveshown the bond as provided with coils both in the transverse andhorizontal planes and in the transverse plane have shown two coilsinstead of one coil as in Fig. 1. Near the ends of the bond they arebent upward then outward again the ends 3 thereof being turned upward atright angles thereby forming angular shoulders at which in attaching areset up, close against the under sides of the rails the ends being passedthrough holes in the rails and headed In testimony whereofI affix mysignature in presence of two witnesses.

JAMES G. HALLAS.

Witnesses:

G. G. NUTTALL, W. H. THOMPSON.

